Top Principal Software Engineer Jobs in Chicago, IL

The Principal Software Engineer will lead and develop innovative technology solutions for banking, focusing on Calypso platforms with an Agile methodology.

The Principal Software Engineer will provide technical and architectural leadership in data engineering, focusing on strategy, innovation, and ensuring successful production deliveries while fostering teamwork and mentoring.

The Principal Software Engineer provides technical leadership for enterprise applications focusing on ERP and core systems, resolving complex issues, and enhancing solutions while ensuring best practices in full-stack development.

As a Principal Software Engineer, you will architect WEX's Data-as-a-Service platform, set standards, guide strategy, and mentor teams while driving innovation with modern technologies.

Lead the architecture of backend services and distributed systems for OpenAI's B2B engineering team, ensuring scalable, reliable, and secure products.

The Principal Software Engineer at Motion will make key technical decisions, implement large software projects, take ownership of projects, and collaborate with other engineers to enhance product value.

The Principal Software Engineer will lead AI systems development and mentor teams, driving AI adoption and ensuring compliance with healthcare regulations.

As Principal Software Engineer, you'll define and drive Airbnb's performance strategy, lead performance profiling development, mentor engineers, and connect performance outcomes to business objectives.

Lead design and development of automated benchmarking tooling and processes for Elasticsearch at cloud scale. Define methodologies, run and interpret performance tests, investigate regressions, assist capacity planning, and mentor engineers. Collaborate cross-functionally to tune distributed systems and report benchmarking results.

Lead the design and implementation of full-stack solutions while mentoring junior engineers and driving agile development practices within the organization.

Lead design and reliability of a financial data extraction platform, minimizing human validation through AI, and enhance system correctness for scale.

The Principal Software Engineer will lead technical initiatives, develop scalable solutions, mentor teams, and drive system architecture for a connected equipment platform.

Develop and maintain advanced security software solutions, architect AI-enhanced microservices, and lead project teams for threat protection at GoDaddy.

The Principal Software Engineer will lead the modernization of seller applications, set technical strategy, and mentor engineers while driving architecture and engineering practices in a cloud-native environment.

The Principal Software Engineer II will lead and contribute to Elasticsearch's Storage Engine team, focusing on efficient data querying, indexing, and developing Timeseries solutions. This role requires strong technical leadership, collaboration across teams, and expertise in Java and Elasticsearch.

Design and develop web applications, mentor teammates, shape architectural decisions, write clean code, conduct testing, and troubleshoot issues.

Lead AI adoption initiatives and cultural transformation in engineering at Yahoo Mail, enhancing developer productivity through AI tools and practices.

The Principal Software Engineer will lead technical initiatives, own systems and capabilities, drive architectural improvements, provide mentorship, and ensure quality across the engineering organization while delivering complex software solutions.

Design, develop, and deploy secure, scalable software solutions; implement and automate CI/CD pipelines and testing; manage cloud infrastructure (AWS/Azure) and infrastructure automation; provide Tier III support, monitor performance and SLAs, and train teams on automation best practices.

The Principal Software Engineer will design, develop, and implement complex solutions for the FedNow service, providing technical leadership and ensuring high-quality software across various technologies.

The Principal Software Engineer will lead development for Dataminr's Knowledge Platform, focusing on AI and data engineering to enhance knowledge graphs and alerting capabilities.

The Principal Software Engineer will lead and shape the Data Platform's technical direction, drive architectural standards, mentor teams, and enhance HubSpot's AI-powered CRM capabilities.

The Principal Software Engineer will design and build scalable core technology systems for Lime's fleet and mentor a team of engineers. Responsibilities include defining technical strategy and collaborating cross-functionally to improve technology and user experiences.

Design and implement new search features and fixes in Elasticsearch, invent or implement algorithms/data structures, collaborate with a distributed team, contribute to Lucene, and build scalable search functionality for serverless platforms.

Lead the design and implementation of mortgage technology features, mentor engineers, and collaborate across teams to improve customer experiences.